There have been quite a few that have used that combo. If you tow heavy in mountains the 5 spd isn't the best choice with those gears. CumminsPower59 is running that setup now. He will pop in I bet pretty soon.

Philip wrote:There have been quite a few that have used that combo. If you tow heavy in mountains the 5 spd isn't the best choice with those gears. CumminsPower59 is running that setup now. He will pop in I bet pretty soon.

Well shows what I know then....or maybe I just don't always pay attention in class....

Dirty Luther wrote:Would like to know if anyone has run 307 gears matched with a 5 speed

Sure am. What would you like to know?

Does it seam weak or sluggish. What's ur rpm at 75 mph

Well, my truck is far from stock, so the only time it felt 'weak-ish' was when I put 315 series tires on it, because of the larger mass to rotate. Think of it as a shorter lever to move the same load 3.07's and tall tires don't mix. Currently, my pile has 285's (33") and does much better. As for RPM's at 75, its 1800.

I absolutely LOVE the 3.07/ Getrag combo. I also use it strictly as a daily driver with a topper and 8-900# of shoeing tools nd supplies in the back. Slight increase in MPG, and it did quiet down the road and engine noise. It is nice to go 80 and be able to carry on a phone conversation.

Don't worry about it I loved my 307 and a 5sp also ran a 35in tire. Pulled a trailer with big loads quite a bit sometimes consisting of a cornpro trailer and a 580 construction king back hoe. Never felt sluggish to me! It would spin the tires 120 in 4th on a chassis dyno.

I had that combo once. If you pull heavy trailers it's hard on the clutch to back up or launch the truck. Also, the rpm is almost to low in 5th at 60 mph. Unless you drive on the freeway a lot it's not worth it.